package pl.wr.particle.def.matter.quasiparticles;

import pl.wr.particle.def.matter.typeparticle.IQuasiParticle;

/**
 * In physics, polaritons (pronounced /pɵˈlærɪtɒnz/) are quasiparticles
 * resulting from strong coupling of electromagnetic waves with an electric or
 * magnetic dipole-carrying excitation. They are an expression of the common
 * quantum phenomenon known as level repulsion, also known as the avoided
 * crossing principle. Polaritons describe the crossing of the dispersion of
 * light with any interacting resonance. Thus, a polariton is the result of the
 * mixing of a photon with an excitation of a material. The most discussed types
 * of polaritons are phonon-polaritons, resulting from coupling of an infrared
 * photon with an optic phonon; exciton-polaritons, resulting from coupling of
 * visible light with an exciton; intersubband-polaritons, resulting from
 * coupling of an infrared or terahertz photon with an intersubband excitation;
 * and surface plasmon-polaritons, resulting from coupling of surface plasmons
 * with light (the wavelength depends on the substance and its geometry).
 * Recently, special kinds of polaritons, called Bragg-polaritons or
 * Braggoritons, have been observed [1] and studied theoretically. Whenever the
 * polariton picture is valid, the model of photons in crystals is insufficient.
 * A major feature of polaritons is a strong dependency of the propagation speed
 * of light through the crystal on the frequency. For exciton-polaritons, rich
 * experimental results on various aspects have been gained in copper (I) oxide.
 * The polariton is a bosonic quasiparticle, and should not be confused with the
 * polaron, a fermionic one, e.g. an electron plus attached phonon cloud.
 * 
 * @version 1.0
 * @author wieslaw.rodak
 *
 */
public interface IPolariton extends IQuasiParticle{

}
